TOWN OF WINIFRED

NPDES permit MT0031453 · Minor POTW · administratively continued, expires 2024-03-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file

This permit expired on 2024-03-31 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

EPA's record, 2025-09-01 to 2026-08-31

52values over a limit
2required values missing, on 1 form(s)
1of 14 forms filed late

Last period with anything received: 2026-08-31. Most often over: E. coli, MTEC-MF (16), Solids, total suspended (12), BOD, 5-day, 20 deg. C (11).

Reporting

Reports are due about 28 days after each monitoring period ends (read off this permit's own late-day counts in EPA's filings).

Limits in force (35)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMO AVG report only all year
001Temperature, water deg. centigradeMO MAX report only all year
001Temperature, water deg. centigradeMO AVG report only all year
001Flow rateMO AVG report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Flow rateMO AVG report only Jul, Aug, Sep
001Flow rateDAILY MX report only Jan, Feb, Mar, Apr, May, Jun, Oct, Nov, Dec
001Flow rateDAILY MX report only Jul, Aug, Sep
001BOD, 5-day, 20 deg. CMO AVG <= 30 mg/L all year
001BOD, 5-day, 20 deg. CMX WK AV <= 45 mg/L all year
001BOD, 5-day, 20 deg. CMO AVG <= 5.3 lb/d all year
001BOD, 5-day, 20 deg. CMX WK AV <= 8 lb/d all year
001BOD, 5-day, 20 deg. CMO AVG report only all year
001pHINST MIN >= 6.5 SU all year
001pHINST MAX <= 9 SU all year
001pHMO AVG report only all year
001Solids, total suspendedMO AVG <= 30 mg/L all year
001Solids, total suspendedMX WK AV <= 45 mg/L all year
001Solids, total suspendedMO AVG <= 5.3 lb/d all year
001Solids, total suspendedMX WK AV <= 8 lb/d all year
001Solids, total suspendedMO AVG report only all year
001Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
001Nitrogen, ammonia total [as N]MO AVG report only all year
001Nitrogen, ammonia total [as N]DAILY MX report only all year
001Nitrite + Nitrate total [as N]MO AVG <= 10 mg/L all year
001Nitrite + Nitrate total [as N]DAILY MX <= 10 mg/L all year
001E. coli, MTEC-MFMOAV GEO <= 126 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFMOAV GEO <= 630 CFU/100mL Jan, Feb, Mar, Nov, Dec
001E. coli, MTEC-MFWKLY AVG <= 252 CFU/100mL Apr, May, Jun, Jul, Aug, Sep, Oct
001E. coli, MTEC-MFWKLY AVG <= 1260 CFU/100mL Jan, Feb, Mar, Nov, Dec
001DurationVALUE report only all year
001Chlorine, total residualMO AVG <= .1 mg/L all year
001Chlorine, total residualDAILY MX <= .1 mg/L all year
001BOD, 5-day, percent removalMINIMUM >= 85 % all year
001Solids, suspended percent removalMINIMUM >= 85 % all year
001Oil and grease visualVALUE report only all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states